Talking-machine.



H. A. MYERS.

TALKING MACHINE.

APPLlCATION FILED JULY 16. 1915.

Patented July 24, 1917.

g\ ATTORNEY HUBERT A. MYERS, 01F TOLEDO, (DI-HQ ASSIGNQR T HVEY F. BAIQ'TA, OF GUSHEN, INDIANA.

- reproducing mechanisms.

This invention has utility in connection with sound mechanisms for simultaneously recording or reproducing tones or notes from difierent musical instruments or different voices.

Referring to the drawings Figure 1 1s a plan View of an embodiment p of the IHVBIItlOIlllIl a disk machine;

Fig. his a Fig. 2 is a side elevation of the device of Fig. 1;

Fig. 3 is a plan view of an embodiment of the invention in a disk machine wherein the needles are disposed in a successive or approximately tandem relation instead of a parallel relatlon, as in Fig. 1;

Fig. 4 is a side elevation of the device of Fig. 3; an -1 fragmentary detail of a record.

Mounted on the amplifier containing box 1 are the arms 2, 3, 4, 5, extending "to the amplifier, each arm carrying a diaphragm box 6, 7, 8, 9, and having extending therefrom a needle 10 to coaot with the disk record 11. The linearly longer record adjacent the smaller diaphragm or sound box 6 may be used for the higher tones, say soprano, and the larger diaphragm box 9 on the linearly shorter distance of the record 11 for the lower or heavier tones, say as ham.

With the arms disposed in substantially parallel relation, the dilierent records on the disk have simultaneous production or reproduction and the spiral groove for the needle of one arm is entirely independent of the spiral grooves for each of the other arms. To assist in placing needles for starting the needles in proper synchronism, seats 12, 13, 1 1, 15, are provided. With the needles properly positioned in these seats a starting of the record will insure the recording or the reproduction of the sounds in :a definite relation to each other. The arms are shown Specification of Lettersratent.

A. Mrnns, a

.. diaphragm or .sound boxes .needles 10 in adjacent spiral Patented duly dd, lldl'tw Application filed. July 16, 1915. Serial Ito. 40,185.

connected'up for reproduction through the box 1, while for production the conducting ways may extend to difi'erent individuals as in'the instance of a quartet, orto difierent musical instruments, as in the instance of orchestra records. There is possibleconsiderable refinement in the handling of tones by the separate diaphragms, and the simultaneous operation of the diaphragms for reproduction eliminates machine combining of the tones and enables the bearer to have the separate sound origins brought to him for combining in 'his presence and hearing with improved detail most closely approaching the originals.

Instead of considerable variation in length of the separate records the records may be of approximately the same length with similar by providing a box 16 with arms 17 having intergrouped grooves in this multiple spiral groove record 20. Here, as in therecord 11,'are provided seats 21, 22, 23, 2 l, to assist in accurately placing theneedles for starting in simultaneous operation of reproduction or production.

What is claimed and it is desired to secure by Letters Patent is:

A. sound handling mechanism comprising a rotatable disk record carrier platform for a sin le disk record embodying independent spira paths on a single side thereof, a support for the platform, an amplifier, a plurality of independently swingable arms providing therein sound .ducts, said arms symmetrically spaced from each other in the same general radial direction in their mounting on the support for clearance in their relatively independent travels radially of the platform, each duct being connected to the amplifier, a diaphragm box mounted on each duct, and-a record 'coactin needle for each duct disposed to travel 1n inde-. pendent paths on the same side of a single record.

In witness whereof I afix my signature.v

lineal travel rate for the needles 

